• Bulletin of the Korea Photovoltaic Society
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• v.4 no.3
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• pp.27-35
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• 2018

Around the world, there are increasing efforts underway to decarbonize the electricity generation system to mitigate the environmental impacts including climate change. While Indonesia has a huge potential for new and renewable energy, particularly solar photovoltaic, Indonesia has been largely dependent on fossil fuels. As of 2017, the installed capacity for solar photovoltaic in Indonesia was 78.5MW and this was only 0.04% of the theoretical solar potential, which is around 207.9GW($4.8kWh/m^2/day$). With the case of solar photovoltaic, this paper examined the reasons of low adoption of the technology and the challenges of energy transition in Indonesia from the policy and institutional perspectives.

• Journal of Drive and Control
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• v.16 no.1
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• pp.22-28
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• 2019

This paper develops ABS braking real - time simulator to develop vehicle braking system by simulation. Recently, real-time simulation is widely used in the development of vehicles to decrease development time. In the field of electronic braking, real-time simulation is actively underway. In order to simulate electronic braking model in real time, a vehicle model, a hydraulic model, and a control S/W model are required. These models must be calculated in one platform. Therefore, in this paper, a vehicle model composed of CarSim and a hydraulic model composed of SimulationX using S/W in actual ABS controller was developed as a Simulink model base and linked with Matlab real time model. Using this real-time model, design effects of the electronic braking controller were simulated according to road surface condition to verify its operability.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2019.11a
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• pp.178-179
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• 2019

The cement industry is a large amount of carbon dioxide emission industry, and research and development on non-cement composition is underway at the time when the absolute reduction of cement use is urgently needed. In addition, limestone fine powder is a by-product and is required to be recycled in terms of resource circulation. The compressive strength of the lime cement powder added noncement composition showed that the compressive strength increased as the limestone powder was added. It is believed that limestone fine powder played a role of stimulant such as alkali activator in non-cement composition.

• Journal of Aerospace System Engineering
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• v.14 no.6
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• pp.26-35
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• 2020

The national satellite operation network, which supports multiple satellites, was designated as a Critical Information Infrastructure (CII) in 2017. The network was designed independently from the control network and the information network to enhance physical security. Planning is underway to establish a bidirectional data interface between networks. The data transmission system allows data flow only to the physical layer and the data link layer; hence, only one file can be transferred at any one time. This means that when large amounts of data are being transmitted, no other data can be sent simultaneously in urgent situations. Thus, this paper discusses the design of flexible packets for the transmission of data between networks in an environment where physical security has been enhanced through network separation and based on this, presents a method for transmitting data effectively.

• Proceedings of the PSK Conference
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• 2003.10b
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• pp.208.1-208.1
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• 2003

We synthesized naphthazarin derivatives from shikonin, a major compound from Lithospermum erythrorhion Sieb et ZUCC. Of derivatives, DMNQ S64, 2-or 6-(l-hydroxyiminoalkyl) effectively showed antitumor activity on A549, human lung cancer cells (IC$\sub$50/= 30 ${\mu}$M). It significantly inhibited prostaglandin E$_2$(IC$\sub$50/= 10 ${\mu}$M). We also confirmed it selectively downregulated the expression of cyclooxygenase 2(COX-2), while it didn't affect COX-1. The induction of apoptosis by DMNQ S64 is underway.

• KEPCO Journal on Electric Power and Energy
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• v.7 no.1
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• pp.85-91
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• 2021

With the social atmosphere of respect for human life and the increasing interest in safety of field workers, research and development is underway in various ways to transform direct live method into indirect live method in the field of distribution. As part of this measure, it was necessary to convert electric pole and complex facilities work from machining power distribution to indirect live operation, and install a straight connecting sleeve that connects cut wires for by-pass method, but it failed to meet the tensile strength standard when constructing a sleeve constructed by direct method. In this paper, the design factors were derived based on the case of overseas similar sleeves and the tensile strength evaluation of each variable was performed, based on the analysis of these test results, the method for securing tensile strength of straight-line access sleeves for indirect running was presented.

• Electronics and Telecommunications Trends
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• v.36 no.4
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• pp.1-12
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• 2021

The competition to lead the next generation of mobile technologies, 6G, is underway while the deployment of 5G has not been implemented worldwide. ITU-R plans to develop technical requirements and standards after completing the 6G Vision by 2023. It can be considered too early to have a concrete view of the 6G core network architecture from this timeline. However, major stakeholders have started making their presence felt by publishing their views. From updated analysis on the technology and service trends proposed, we present a list of research directions on 6G core network from several perspectives: distribution of network functions to nearer edge locations; future fixed-mobile convergence, including low earth orbit satellites; highly-precise QoS guarantee; supporting an extremely wide variety of service requirements; AI-native automation and intelligence; and aligning with the evolution of radio access network.

• Journal of Auto-vehicle Safety Association
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• v.12 no.4
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• pp.48-53
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• 2020

This paper describes in work which is currently underway to the minimum safety performance requirements and test methods of V2V based on IEEE 802.11p in vehicle level like below. - The ranges and positions at static and driving condition of vehicle for BSM (Basic safety message) - Various road conditions such as straight road, crossroad, slope-way Based on this study, We will define the minimum safety performance requirements and test methods of V2V in vehicle considering various road conditions.

• Journal of Hospice and Palliative Care
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• v.24 no.1
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• pp.1-12
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• 2021

Hospice palliative care refers to holistic care provided by an interdisciplinary team aimed at improving the quality of life of patients suffering from life-threatening diseases and their families. Among interdisciplinary team members, hospice advanced practice nurses (APNs) trained as master's-level advanced nursing professionals are leaders who play an important role in providing patient-centered care and improving the quality of services. The Medical Service Act revised in 2018 requires the scope of practice of APNs in each field to be specified in the Ordinance of the Ministry of Health and Welfare. Accordingly, discussions on the role and scope of practice of hospice APNs are actively underway. In this review, the curriculum of hospice APNs, their work responsibilities and roles, and their current status are reviewed, and the future direction of the hospice APN system is also discussed.

• Journal of the Korean Society of Industry Convergence
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• v.24 no.6_2
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• pp.707-713
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• 2021

Symptoms of foot-and-mouth disease include fever and drooling a lot around the hoof, blisters in the mouth, poor appetite, blisters around the hoof, and blisters around the hoof. Research is underway on smart barns that remotely manage these symptoms through cameras. Visible light cameras can measure the condition of livestock such as blisters, but cannot measure body temperature. On the other hand, infrared thermal imaging cameras can measure body temperature, but it is difficult to measure the condition of livestock. In this paper, we propose an object detection system using deep learning-based livestock detection using visible and infrared thermal imaging composite camera modules for preemptive response